Answer:
492.6g
Explanation:
Given parameters:
Number of moles of MgSO₄.7H₂O = 2moles
Unknown:
Mass = ?
Solution:
To find the mass of this compound;
Mass = number of moles x molar mass
Molar mass of MgSO₄.7H₂O = 24.3 + 32 + 4(16) + 7[2(1) + 16]
= 246.3g/mol
Mass = 2 x 246.3 = 492.6g
Answer:
metamorphic rocks
Explanation:
metamorphic rocks are made from the pressure and heat "metamorphic" comes from greek and it stands for "to change form"
Answer:
Freezing
Explanation:
When a liquid goes to a solid, this process is called freezing.
Answer:
I think it's light production, color change (new/different), gas production (bubbles/fizzing - not boiling), precipitate, and temperature change
Your answer would be shorter wavelength and equal speed !
